package Demo01;

public class StringBuffer01 {
    public static void main(String[] args) throws Exception {
        StringBuffer buffer = new StringBuffer();
        buffer.append("沐言科技：").append("www.yootk.com").append("\n");
        change(buffer);
        System.out.println(buffer);
    }
    public static void change(StringBuffer temp) {
       temp.append("李华编程训练营：").append("edu.yootk.com");
    }
}
